title: Reduction in dietary trans fat intake is associated with decreased LDL particle number in a primary prevention population.
abstract: OBJECTIVE
  Increased trans fat intake has been associated with an increased risk of cardiovascular disease (CVD). While the effect of trans fat on traditional lipids is known, it's association with LDL particle number (LDL-P), a novel marker of CVD risk, has not been established. The purpose of this study was to determine the association between trans fat intake and LDL-P over 1-year among individuals participating in a lifestyle intervention trial.
  
  
  RESULTS
  Family members (N = 400, 33% male, mean age 48 ± 13) of patients hospitalized with CVD who participated in a 1-year randomized controlled primary prevention lifestyle intervention trial and had complete dietary data and LDL-P measures at baseline and 1-year. Change in trans fat as a percentage of total diet and mean absolute change in LDL-P at 1-year was assessed using multivariate adjusted linear regression models. At baseline, there was a significant positive correlation between dietary trans fat intake and LDL-P (Beta = 37, p = 0.04). For every 1 percent change in trans fat intake there was a 27 nmol/L change in LDL-P (Beta = 27, p = 0.04) over 1-year which was independent of baseline predictors and confounders (age, sex, smoking, statin use, waist size and physical activity; Beta = 30, p = 0.03).
  
  
  CONCLUSIONS
  A reduction in trans fat intake over 1-year was significantly associated with a reduction in LDL-P independent of potential confounders. Healthcare providers should reinforce the beneficial impact of a healthy diet, and in particular modifications in trans fat intake on improving lipid profiles.
authors.affiliation: Preventive Cardiology Program, Columbia University Medical Center/New York-Presbyterian Hospital, New York, NY, USA.
authors.forename: M
authors.initials: M
authors.lastname: Garshick
authors.affiliation: Preventive Cardiology Program, Columbia University Medical Center/New York-Presbyterian Hospital, New York, NY, USA.
authors.forename: H
authors.initials: H
authors.lastname: Mochari-Greenberger
authors.affiliation: Preventive Cardiology Program, Columbia University Medical Center/New York-Presbyterian Hospital, New York, NY, USA. Electronic address: ljm10@columbia.edu.
authors.forename: L
authors.initials: L
authors.lastname: Mosca
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D002318:Cardiovascular Diseases / Q000517:prevention & control; D008078:Cholesterol, LDL / Q000097:blood; D004032:Diet; D018752:Diet, Fat-Restricted; D002149:Energy Intake; D005190:Family; D005500:Follow-Up Studies; D008019:Life Style; D015999:Multivariate Analysis; D011322:Primary Prevention; D012307:Risk Factors; D044242:Trans Fatty Acids / Q000008:administration & dosage
chemical_list: D008078:Cholesterol, LDL; D044242:Trans Fatty Acids
keywords: Cardiovascular disease; Nutrition; Prevention